Rwandan women hold candles during a night vigil and prayer for genocide victims at Amahoro stadium. Simon Maina/AFP/Getty Images hide caption

Kristine Opolais made her Madama Butterfly debut as Cio-Cio-San, only to get a last-minute call to play Mimi in La Boheme. Marty Sohl/Metropolitan Opera hide caption

Huge HD TV screens have changed the stadium experience. Many fans who paid big bucks for a ticket to the game will still be watching it on TV. Tony Gutierrez/AP hide caption

A pair of running shoes left at the Boston Marathon memorial last year. Jesse Costa/WBUR hide caption

Antique bows were often made with a small piece of ivory that clamps the bow hairs onto the wood. Courtesy of the artist hide caption

Are we in a tech bubble about to burst? Facebook bought WhatsApp for $19 billion earlier this year. WhatsApp CEO Jan Koum speaks during a conference at the Mobile World Congress 2014 in Spain. David Ramos/Getty Images hide caption

Rick Blaine, the sentimental tough guy in Casablanca, pined for "As Time Goes By." The Kobal Collection hide caption

A woman walks past a local bank in Kiev's Independence Square that was set on fire during Ukraine's recent unrest. The country is now squeezed by IMF-mandated austerity measures and the specter of higher prices for gas from Russia. Marko Drobnjakovic/AP hide caption

A worker with Afghanistan's Independent Election Commission unloads ballot boxes in Kabul. Ballots have been coming in from all over the country, but results are not expected to be announced for about two weeks. In addition, there will likely be a runoff election between the top two candidates in June. David Gilkey/NPR hide caption

Live tilapia raised by Blue Ridge Aquaculture are loaded into a truck bound for New York. Dan Charles/NPR hide caption